import router from "./router";
import store from "./store";
import { Message } from "element-ui";
import NProgress from "nprogress"; // progress bar
import "nprogress/nprogress.css"; // progress bar style
import { getToken } from "@/utils/auth";

NProgress.configure({ showSpinner: false }); // 不显示进度环

const whiteList = ["/login", "/logisticsH5", "/goodsDetails","/preview","/previewOther","/alipay"]; // no redirect whitelist

router.beforeEach(async (to, from, next) => {
  // start progress bar
  NProgress.start();

  // determine whether the user has logged in
  const hasToken = getToken();
  const title = store.state.setting.projectInfo.title+'后台管理系统'
  document.title = title
  if (hasToken) {
    if (to.path === "/login" || (to.path === "/404" && from.name === "login")) {
      // if is logged in, redirect to the home page
      next({ path: "/" });
      NProgress.done();
    } else {
      const hasMenu = store.getters.menu && store.getters.menu.length > 0;
      if (hasMenu) {
        next();
      } else {
        try {
          const { menu } = await store.dispatch("user/getMenu");
          if (menu.length > 0) {
            const accessRoutes = await store.dispatch(
              "permission/generateRoutes",
              menu
            );
            // dynamically add accessible routes
            router.addRoutes(accessRoutes);
            // hack method to ensure that addRoutes is complete
            // set the replace: true, so the navigation will not leave a history record
            next({ ...to, replace: true });
          } else {
            store.dispatch("user/logout");
          }
        } catch (error) {
          // remove token and go to login page to re-login
          await store.dispatch("user/resetToken");
          // Message.error({ message: error.msg || "Has Error" });
          next(`/login?redirect=${to.path}`);
          NProgress.done();
        }
      }
    }
  } else {
    /* has no token*/
    if (whiteList.indexOf(to.path) !== -1) {
      // in the free login whitelist, go directly
      next();
    } else {
      // other pages that do not have permission to access are redirected to the login page.
      next(`/login?redirect=${to.path}`);
      NProgress.done();
    }
  }
});

router.afterEach(() => {
  // finish progress bar
  NProgress.done();
});
